diff --git a/modules/home/terminal/opencode/default.nix b/modules/home/terminal/opencode/default.nix
index d3dc9ff..b1e928f 100644
--- a/modules/home/terminal/opencode/default.nix
+++ b/modules/home/terminal/opencode/default.nix
@@ -21,6 +21,15 @@
       settings = {
         "plugin" = ["opencode-gemini-auth" "opencode-anthropic-oauth"];
 
+        "mode" = {
+          "build" = {
+            "prompt" = "You are Claude Code, Anthropic's official CLI for Claude.";
+          };
+          "plan" = {
+            "prompt" = "You are Claude Code, Anthropic's official CLI for Claude.";
+          };
+        };
+
         "permission" = {
           "bash" = {
             "*" = "ask";